docs: def get_top_artists(self, period=PERIOD_OVERALL, limit=None):
          """Returns the top artists played by a user.
          * period: The period of time. Possible values:
            o PERIOD_OVERALL
            o PERIOD_7DAYS
            o PERIOD_1MONTH
            o PERIOD_3MONTHS
            o PERIOD_6MONTHS
            o PERIOD_12MONTHS
          """
  
          params = self._get_params()
          params["period"] = period
          if limit:
              params["limit"] = limit
  
          doc = self._request(self.ws_prefix + ".getTopArtists", True, params)
  
          return _extract_top_artists(doc, self.network)